He often helps my mum to clean the house on Sunday.为什么用to cl

He often helps my mum to clean the house on Sunday.为什么用to cl My sister often helps my mum (clean)the house. 英语选择题：My brother often helps my mum ____ the house on sunday My sister often helps my Mum______(clean)the house. She often helps her father ( )the house on Sunday On Sunday,He often helps his mother clean/cleaning.clean和cle nick sometimes helps his mum _____ (clean) the house He need ( ) the living room on Sunday.A .clean B .to clean C He often listens to music on Sunday on sunday ,I often go to my i often help my mother clean the house.为什么clean用原型? he often helps me with my homwork.与he often helps me to my h